UPS User Manual
430
RS-232 Pin Assignments
Pin assignments for the Transmitter and Receiver’s rear RS-232 port that is
used for connecting to a serial terminal are given in the table, below:
Transmitter Front RS-232 Port
Pin assignments for the Transmitter’s front RS-232 port that is used for
connecting to a computer for serial control are given in the table, below:
Pin Assignment
1 N/A None
DB9 Male
2 RXD Receive Data
3 TXD Transmit Data
4 DTR Data Terminal Ready
5 GND Signal Ground
6 DSR Data Set Ready
7 RTS Request to Sent
8 CTS Clear to Sent
9 N/A None
Pin Assignment
1 N/A None
DB9 Female
2 TXD Transmit Data
3 RXD Receive Data
4 DSR Data Set Ready
5 GND Signal Ground
6 DTR Data Terminal Ready
7 CTS Clear to Sent
8 RTS Request to Sent
9 N/A None
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